Amazon Aurora read-only slaves slowly increase to 100% CPU and dieHow can I increase cpu performance on Amazon EC2 running instance?CPU load on CentOS Plesk server between 50-100% but processes only add up to around 10%Windows 2003/2008 terminal server, Application using 95-100% CPU when crashed, auto kill process?CPU being pushed to 100% by a process, trying to track and eliminate the problemhow to fix slow query of mysql on Amazon and CPU 100% on the small rds instanceAmazon RDS: Sudden increase in Read IOPS and ThroughputSudden increase in CPU usage and server response timeXenServer 6.2 VM 100% CPU and 100% memory usage and won't bootApache and MySQL processes running at 100% CPUAWS ElasticBeanstalk and Laravel CPU 100%
Multi tool use
What is the required burn to keep a satellite at a Lagrangian point?
Caught with my phone during an exam
Are clauses with "который" restrictive or non-restrictive by default?
Why is this python script running in background consuming 100 % CPU?
Way of refund if scammed?
What was the primary motivation for a historical figure like Xenophon to create an extensive collection of written material?
Why is 'additive' EQ more difficult to use than 'subtractive'?
Why is unzipped file smaller than zipped file
Is a world with one country feeding everyone possible?
Proto-Indo-European (PIE) words with IPA
Is it OK to look at the list of played moves during the game to determine the status of the 50 move rule?
Are there historical examples of audiences drawn to a work that was "so bad it's good"?
How do I write real-world stories separate from my country of origin?
Efficient Algorithms for Destroyed Document Reconstruction
why "American-born", not "America-born"?
Can the Conjure Barrage spell stack with the Disarming Attack or Trip Attack Battle Master maneuvers?
How many wires should be in a new thermostat cable?
Negative impact of having the launch pad away from the Equator
How did the Allies achieve air superiority on Sicily?
Department head said that group project may be rejected. How to mitigate?
Why "strap-on" boosters, and how do other people say it?
Coloring lines in a graph the same color if they are the same length
Wifi light switch needs neutral wire. Why? AND Can that wire be a skinny one?
Find this Unique UVC Palindrome ( ignoring signs and decimal) from Given Fractional Relationship
Amazon Aurora read-only slaves slowly increase to 100% CPU and die
How can I increase cpu performance on Amazon EC2 running instance?CPU load on CentOS Plesk server between 50-100% but processes only add up to around 10%Windows 2003/2008 terminal server, Application using 95-100% CPU when crashed, auto kill process?CPU being pushed to 100% by a process, trying to track and eliminate the problemhow to fix slow query of mysql on Amazon and CPU 100% on the small rds instanceAmazon RDS: Sudden increase in Read IOPS and ThroughputSudden increase in CPU usage and server response timeXenServer 6.2 VM 100% CPU and 100% memory usage and won't bootApache and MySQL processes running at 100% CPUAWS ElasticBeanstalk and Laravel CPU 100%
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
add a comment |
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performingSELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...
– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
add a comment |
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
47210
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performingSELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...
– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
add a comment |
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performingSELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...
– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performing
SELECTs. Find a slow one, and present it to us for critique. Include SHOW CREATE TABLE and EXPLAIN SELECT ...– Rick James
May 10 at 0:49
High CPU usage almost always implies poorly performing
SELECTs. Find a slow one, and present it to us for critique. Include SHOW CREATE TABLE and EXPLAIN SELECT ...– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
add a comment |
1 Answer
1
active
oldest
votes
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "2"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fserverfault.com%2fquestions%2f966398%2famazon-aurora-read-only-slaves-slowly-increase-to-100-cpu-and-die%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
add a comment |
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
add a comment |
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
answered May 13 at 11:50
Yves MartinYves Martin
5442520
answered May 13 at 11:50
Yves MartinYves Martin
5442520
answered May 13 at 11:50
Yves MartinYves Martin
5442520
5442520
add a comment |
add a comment |
Thanks for contributing an answer to Server Fault!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fserverfault.com%2fquestions%2f966398%2famazon-aurora-read-only-slaves-slowly-increase-to-100-cpu-and-die%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
OEnzGdHAx5it7vn3CjW4TcMGs lHB ZjVHj3R3dnLDvoAm6 6xwm5EhVaQ,ruO
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performing
SELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37